[lttv.git] / tags / lttv-0.10.0-pre15-12082008 / doc / developer / developer_guide / html / x77.html

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>3.3. The dynamic part of a module : the viewer</A
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>&#13;The dynamic part starts with the constructor of the viewer. It is called by the
main window when the corresponding button or menu item is selected. See
h_guicontrolflow() from control flow viewer eventhooks.c for an example. It does
basic connexion to the tab's events available : time window change notification,
current time notification, redraw notification, continue notification. All these
function should be implemented in your viewer if you want the data you shown to
be synchronised with the main window and the other viewers. It also calls the
background computation, which will be discussed in the next section.
</P
><P
>&#13;This is also at this point that the viewer does create it's own memory footprint
: its inner structure. This structure will have to be passed as hook_data to
each function registered by the viewer : this is what makes the functions
"belong" to this instance of the viewer.
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Commit	Line	Data
5750899b	1	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
	2	<HTML
	3	><HEAD
	4	><TITLE
	5	>The dynamic part of a module : the viewer</TITLE
	6	><META
	7	NAME="GENERATOR"
	8	CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
	9	REL="HOME"
	10	TITLE="Linux Trace Toolkit Viewer Developer Guide"
	11	HREF="index.html"><LINK
	12	REL="UP"
	13	TITLE="Linux Trace Toolkit Viewer Graphical Module Tutorial"
	14	HREF="c67.html"><LINK
	15	REL="PREVIOUS"
	16	TITLE="The static part of a module"
	17	HREF="x72.html"><LINK
	18	REL="NEXT"
	19	TITLE="How to request background computation"
	20	HREF="x81.html"></HEAD
	21	><BODY
	22	CLASS="sect1"
	23	BGCOLOR="#FFFFFF"
	24	TEXT="#000000"
	25	LINK="#0000FF"
	26	VLINK="#840084"
	27	ALINK="#0000FF"
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	38	COLSPAN="3"
	39	ALIGN="center"
	40	>Linux Trace Toolkit Viewer Developer Guide</TH
	41	></TR
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	44	WIDTH="10%"
	45	ALIGN="left"
	46	VALIGN="bottom"
	47	><A
	48	HREF="x72.html"
	49	ACCESSKEY="P"
	50	>Prev</A
	51	></TD
	52	><TD
	53	WIDTH="80%"
	54	ALIGN="center"
	55	VALIGN="bottom"
	56	>Chapter 3. Linux Trace Toolkit Viewer Graphical Module Tutorial</TD
	57	><TD
	58	WIDTH="10%"
	59	ALIGN="right"
	60	VALIGN="bottom"
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	62	HREF="x81.html"
	63	ACCESSKEY="N"
	64	>Next</A
65	></TD
66	></TR
67	></TABLE
68	><HR
69	ALIGN="LEFT"
70	WIDTH="100%"></DIV
71	><DIV
72	CLASS="sect1"
73	><H1
74	CLASS="sect1"
75	><A
76	NAME="AEN77"
77	>3.3. The dynamic part of a module : the viewer</A
78	></H1
79	><P
80	> The dynamic part starts with the constructor of the viewer. It is called by the
81	main window when the corresponding button or menu item is selected. See
82	h_guicontrolflow() from control flow viewer eventhooks.c for an example. It does
83	basic connexion to the tab's events available : time window change notification,
84	current time notification, redraw notification, continue notification. All these
85	function should be implemented in your viewer if you want the data you shown to
86	be synchronised with the main window and the other viewers. It also calls the
87	background computation, which will be discussed in the next section.
88	</P
89	><P
90	> This is also at this point that the viewer does create it's own memory footprint
91	: its inner structure. This structure will have to be passed as hook_data to
92	each function registered by the viewer : this is what makes the functions
93	"belong" to this instance of the viewer.
94	</P
95	></DIV
96	><DIV
97	CLASS="NAVFOOTER"
98	><HR
99	ALIGN="LEFT"
100	WIDTH="100%"><TABLE
101	SUMMARY="Footer navigation table"
102	WIDTH="100%"
103	BORDER="0"
104	CELLPADDING="0"
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108	WIDTH="33%"
109	ALIGN="left"
110	VALIGN="top"
111	><A
112	HREF="x72.html"
113	ACCESSKEY="P"
114	>Prev</A
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117	WIDTH="34%"
118	ALIGN="center"
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121	HREF="index.html"
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132	>Next</A
133	></TD
134	></TR
135	><TR
136	><TD
137	WIDTH="33%"
138	ALIGN="left"
139	VALIGN="top"
140	>The static part of a module</TD
141	><TD
142	WIDTH="34%"
143	ALIGN="center"
144	VALIGN="top"
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146	HREF="c67.html"
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148	>Up</A
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154	>How to request background computation</TD
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160	>